knowledge want: GREAT SCIENTISTS OF WORLD - THOMAS ALVA EDISO...: Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman who has been described as America'...
INDUSTRIAL REVOLUTION Starts in Europe particularly in England in eighteen century.It changed the whole of Europe and England 's economy.During this period New machines are invented in England to speed up the spinning of wool and cotton .At first they were powered by water wheels but later steam engines are developed.Iron become cheaper and stronger as Iron making techniques improved.Canals are dug to carry coal from the mines and to transport finished goods.After ...
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